Colour grouping

[mattpilott]

It would be great if colord could tell me which root colour a given colour falls into for example:
hsl(6, 93%, 71%) would be grouped under red
hsl(195, 100%, 50%) would be grouped under blue
hsl(120, 100%, 50%) would be grouped under green

There could be perhaps 10 colour groups such as red, green, blue, purple, orange, grey, brown, yellow, black, white

syntax could be like colord(#ff0000).toGroup()